<?php
/**
 * Created by PhpStorm.
 * User: Lian
 * Date: 2015/8/7
 * Time: 19:09
 */

namespace App\Services\Utils;


class CommonUtil
{
    // 生成 uuid
    public static function getUUID()
    {
        if (function_exists('com_create_guid')) {
            $guid = com_create_guid();
        } else {
            mt_srand((double)microtime() * 10000); // optional for php 4.2.0
            $charid = strtoupper(md5(uniqid(rand(), true)));
            $hyphen = chr(45);
            $uuid = chr(123) . substr($charid, 0, 8) . $hyphen . substr($charid, 8, 4) . $hyphen . substr($charid, 12, 4) . $hyphen . substr($charid, 16, 4) . $hyphen . substr($charid, 20, 12) . chr(125); // "}"
            $guid = $uuid;
        }

        return substr($guid, 1, 36);
    }

    // 获取当前时间
    public static function getCurrentTime() {
        return date("Y-m-d H:i:s");
    }
}